Results 111 to 120 of about 3,113,929 (197)

High-redshift Merger-induced Bar-like Galaxies in IllustrisTNG

open access: yesThe Astrophysical Journal Letters
Recent discoveries made with JWST observations include a significant number of barred galaxies at high redshift. Their origin remains unclear, and their presence seems difficult to reproduce in cosmological simulations of galaxy formation and evolution ...
Ewa L. Łokas
doaj   +1 more source

Low luminosity elliptical galaxies [PDF]

open access: yes, 1998
Long-slit spectra for the photometric axes of a sample of 14 elliptical galaxies, predominantly low-luminosity ellipticals, in the Virgo cluster and in nearby groups, are studied to investigate the galaxy kinematical structure and stellar evolutionary ...
Halliday, Claire, Halliday, C.
core  

Astronomical Image Superresolution Reconstruction with Deep Learning for Better Identification of Interacting Galaxies

open access: yesThe Astrophysical Journal Supplement Series
Galaxy–galaxy mergers are crucial in galaxy evolution, but the tidal features around galaxies are often faint, making it difficult to identify interacting or merging galaxies.
Jiawei Miao   +3 more
doaj   +1 more source

The Environment of HII Galaxies revisited

open access: yes, 2013
We present a study of the close (≲ 200h⁻¹₇₅kpc) environment of 110 relatively local (z≲ 0.16) HII galaxies, selected from the Sloan Digital Sky Survey (SDSS; DR7).
Elena Kirilovsky Terlevich   +3 more
core  

IRAS high resolution studies and modeling of closely interacting galaxies. Galaxy collisions: Infrared observations and analysis of numerical models. UV spectroscopy of massive young stellar populations in interacting galaxies [PDF]

open access: yes, 1993
The Final Technical Report covering the period from 15 Aug. 1989 to 14 Aug. 1991 is presented. Areas of research included Infrared Astronomy Satellite (IRAS) high resolution studies and modeling of closely interacting galaxies; galaxy collisions ...
Lamb, Susan A.
core  

H i Gas and Star Formation in Major Galaxy Pairs from the FAST All Sky H i Survey (FASHI)

open access: yesThe Astrophysical Journal
Atomic hydrogen (H i ) plays a fundamental role in fueling star formation in galaxies. However, the behavior of H i gas in interacting systems, particularly galaxy pairs, remains elusive.
Shulan Yan   +8 more
doaj   +1 more source

Kinematic alignment of non-interacting CALIFA galaxies

open access: yes, 2014
We present 80 stellar and ionised gas velocity maps from the Calar Alto Legacy Integral Field Area (CALIFA) survey in order to characterise the kinematic orientation of non-interacting galaxies.
J. A. L. Aguerri   +22 more
core   +1 more source

A complete redshift sample of galaxies [PDF]

open access: yes, 1983
The role of complete redshift samples is discussed with particular attention focused on the need for new deeper and better controlled surveys for statistical clustering and dynamical studies.
Bean, A.J., Bean, Adrian John
core  

Star clusters in unperturbed spiral galaxies [PDF]

open access: yes, 2008
Stars do not form in isolation, they form in groups known as star clusters. Star clusters are seen in a wide range of galaxies and environments. Their presence reveals the history of the host galaxy and the processes of its star formation.
Mora, Marcelo D.
core   +1 more source

Living with Neighbors. V. Better-aligned Spiral+Spiral Galaxy Pairs Show Stronger Star Formation

open access: yesThe Astrophysical Journal
Enhanced star formation (SF) with star-forming neighboring galaxies bolsters the hydrodynamical contributions during paired interactions. Although the relative spin orientation between interacting galaxies can influence this effect, it has not been ...
Woong-Bae G. Zee   +3 more
doaj   +1 more source

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